Threshing-machine.



PATENTED DEC. 11, 1906 J. J. KLBKER. THRBSHING MACHINE. APPLICATION FILED MAILZS. 1906.

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1 W I 1 ATTORNEYS J. J. KLEKEIL;

THRBSHING MACHINE. APPLICATION FILED MAILZS. 1906.

WITNESSES: Jd'jafi Jlze l'j INVENTOR rue: clams PETERS co. wasnmarc v, a c.

PATENTED DEC. 11, 1906.

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UNITED STATES PATENT OFFICE.

THRESHING-MACHINE.

Specification of Letters Patent.

Patented Dec. 11, 1906.

Application filed March 23. 1906- Serial No. 307,646.

To all whom it may concern.-

Be it known that I, JOs-EPH J. KLEKER, a citizen of. the United States, residing at Owatonna, in the county of Steele and State of Minnesota, have invented a new and useful Threshing-Machine, of which the following is a specification.

This invention relates to threshing-machines and grain-separators, and it has par ticular reference to that class of threshingmachines which are provided with auxiliary cylinders for the rethreshing of cars and por tions of ears from which the grain was not detached by the operation of the primary threshing-c vli nder.

Among the objects of the invention are to improve the separating qualities of the machine and to simplify and improve the construction and operation of the machine as a whole.

With these and other ends in view, which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts, which will be hereinafter fully described, and particularly pointed out in the claim.

In the accompanying drawings has been illustrated a simple and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations, and modifications within the scope of the invention may be resorted to when desired.

In the drawings, Figure 1 is a sectional view taken longitudinally through a portion of a threshing-machine equipped with the invention. Fig. 2 is a horizontal sectional view of the same. Fig. 3 is a detail side view.

Corresponding parts in the several figures are indicated throughout by similar characters of reference.

1 designates a portion of the casing of an ordinary threshing-machine, which is provided at its front end with a feed-throat 2 and feed-table 3. 5 of ordinary construction are provided, as shown.

A straw-rack 6 is suspended for vibration within the casing 1 by means of links or arms 7 7, said straw-rack being made up of a plurality of inclined spaced slats 8 8, between which the grain may escape in the usual.

manner, the said inclined slats serving as the straw-rack vibrates to feed the straw in a A cylinder 4 and concave rearward direction through the casing. The straw-rack inclines in an upward and rearward direction, as is usuallj v the case, and its forward end. is extended beneath the concave 5, as shown, so that material discharged over the rear edge of the concave will fall directly upon the straw-rack.

The sides of the casing 1 are provided with bearings for several pairs of shafts 9 10, which are disposed beneath the reciprocatory or vibratory strawrack, the shafts 10 being located a short distance in rear of the shafts 9 and slightly above the latter, the axes of the two shafts being preferably disposed in a plane which is parallel to the inclined plane of the straw-rack. Each of the shafts 9 and 10 carries picker-wheels 11 and 12, which extend through slots 13 and 14 in the strawrack, it being observed that the pi cker-wheels 11 and 12 are disposed intercurrently upon the shafts and that they are of such dimensions as to overlap each other and to extend well above the upper surface of the strawrack. The picker-wheels may be approximately star-shaped, as shown in the drawings, or they may be of any other suitable and convenient shape. The shafts 9 and 10, carrying the picker-wheels, may be driven in any convenient manner and from any suitable source of power; but it is to be particularly observed that the front shafts 9 of each pair are to be driven at less speed than the rear shafts 10. In order to make this perfectly clear, each shaft 10 has been shown as equipped near one of its ends with a small pulley 1. 5, which is connected by a belt or band 16 with a larger pulley 17 upon its companion shaft 9, to which motion at less speed -1nay thus be transmitted, each shaft 10 having also been shown as equipped near its opposite end with a pulley 18 for the reception of motion from the source of power. means of driving and of transmitting motion between the shafts 9 and 10 may, however,

The

be varied and modified without departing in the least from the scope of the invention.

In the front part of the casing is suspended by means of links or arms 19 a vibratory grain-pan 20, which extends well forward beneath the concave 5 and under the front end of the straw-rack, said grain-pan being inclined in a downward and rearward direction, so as to discharge onto a concave 21, which also receives the discharge of a second grainpan 22, which is suspended for vibration in the rear part of the casing of the machine by pick and tear the straw asunder, loosening means of links or arms 23, the grain-pan 22 being supported in an upwardly and rear- Wardly inclined position approximately parallel to the straw-rack. The grain-pans 20 and 22 together receive all the grain which is separated at the concave 5 and through the straw-rack, including all unthreshed ears and bits of straw to which grains still adhere, all such material being rethreshed by an auxiliary threshing-cylinder 24 of small diameter, which is supported for rotation in position to cooperate with the concave 21. At the rear edge of the latter is provided a pivoted deflecting-board 25, operable by an arm 25, engaging a segment 26, which prevents grain from being thrown violently in a rearward direction by the action of the cylinder 24, said deflector being spaced above the concave 21 to provide for the escape of grain. From the concave 21 the rethreshed grain passes to the cleaning and separating mechanism to be separated from chal'l and light particles; but this mechanism does not constitute a part of the present invention, and it has not been illustrated in the drawings.

By the present invention the material which has been operated upon by the threshing-cylinder 4 is violently discharged in a rearward direction over the rear edge of the concave 5 and onto the vibratory straw-rack 6, where the straw is carried in a rearward direction by the reciprocatory movement of the rack. The picker-wheels 11 and 12, which operate through the slots 13 and 14 in. the rack, will engage straw and contribute to feed the latter in a rearward direction through the casing of the machine but said picker-wheels will at the same time serve, owing to their unequal rate of rotation, to

and disseminating any tangled and matted portions, and thus facilitating the passage of grains and bits of ears or straw to which grain adheres between. the slats oi the strawrack and into the grain-pans underneath. From the grain-pans the grain and unthreshed heads are conveyed to the rethreshing-cylinder, to be there again operated upon, as already stated.

By the present invention the process of separation will be carried out in an extremely thorough and eflicient manner and loss of grain owing to its nonseparati0n from the straw will be almost entirely avoided. This is due especially to the combined action of the interlapping and unequally-speeded picker-wheels, which while the straw remains supported upon the straw-rack will tear it asunder and feed it in the proper direction.

It will be preferred, if not absolutely necessary, to vibrate the straw-rack 6 and the grain-pan 22 in opposite directions, one moving in a forward direction, while the other is moving rearward, inasmuch as the stability and steadiness of the machine while in operation will thereby be increased. Suchamovement may of course be easily effected by ordinary well-known means.

By the use of the rethreshing mechanism herein described the tailings-elevator usually employed for conveying material for rethreshing to the front end of the machine may be entirely dispensed with.

Having thus described the invention, what is claimed is In a threshing-machine, an initial threshing-cylinder, a straw-rack mounted for vibration adjacent said cylinder and having elongated openings, picker-wheels operating in said openings, said wheels having points provided at their peripheries, said points having straw-engaging edges which extend at tangents to a circle, the center of which is coincident with thecenter of the wheel and the radius of which is equal to the sector of the wheel extending from the center thereof to the nearest end of the straw-engaging edge of the point.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two witnesses.

. JOSEPH J. KLEKER.

Witnesses:

JosErH J. WONDRA, VINCENT F. KLEKER. 

